Roof Leaked And Niw My Ceiling Plaster Is Cracked

House settling and temperature or moisture fluctuations in an attic which result in the expansion or contraction of framing members.

Roof leaked and niw my ceiling plaster is cracked.

While unattractive cracks in your ceiling usually aren t a cause for alarm unless they accompany other problems such as blackened drywall or a known leak. Cracks in drywall can be caused by truss uplift or vibrations from an appliance such as a ceiling fan. If your ceilings are plastered cracks are often attributable to weathering of the plaster. Large cracks and a bowed ceiling.

If the crack is between drywall sheets along ceiling joists then use drywall screws to hold the two sheets of plasterboard immobile and approximately level with each other. Delaminating cracks these cracks are a sign of plaster pulling away from the lath behind it. In addition water damage from roof or plumbing leaks can discolor plaster and cause peeling or efflorescence the leaching of salts and minerals to the surface. Ceiling cracks in plaster ceilings.

Some plaster is of poor quality and this may cause the plaster to crack and crumble. Lay drywall jointing compound along the crack on top of the tape. These show up on both ceilings and walls but can be the most dangerous on ceilings. If they are bigger and sections of plaster are falling you will probably have to remove the plaster and replace it with a drywall section.

Typically plaster ceiling cracks have two causes. The jointing compound will cover the tape and be reinforced by the tape.